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-rw-r--r--source/BlockTracer.h6
-rw-r--r--source/LineBlockTracer.cpp11
2 files changed, 10 insertions, 7 deletions
diff --git a/source/BlockTracer.h b/source/BlockTracer.h
index 4adc61f00..6d67f1052 100644
--- a/source/BlockTracer.h
+++ b/source/BlockTracer.h
@@ -36,7 +36,7 @@ public:
/** Called on each block encountered along the path, including the first block (path start), if chunk data is not loaded
When this callback returns true, the tracing is aborted.
*/
- virtual bool OnNextBlockNoData(int a_BlockX, int a_BlockY, int a_BlockZ) {}
+ virtual bool OnNextBlockNoData(int a_BlockX, int a_BlockY, int a_BlockZ) { return false; }
/** Called when the path goes out of world, either below (a_BlockY < 0) or above (a_BlockY >= cChunkDef::Height)
The coords specify the exact point at which the path exited the world.
@@ -44,7 +44,7 @@ public:
Note that some paths can go out of the world and come back again (parabola),
in such a case this callback is followed by OnIntoWorld() and further OnNextBlock() calls
*/
- virtual bool OnOutOfWorld(double a_BlockX, double a_BlockY, double a_BlockZ) {}
+ virtual bool OnOutOfWorld(double a_BlockX, double a_BlockY, double a_BlockZ) { return false; }
/** Called when the path goes into the world, from either below (a_BlockY < 0) or above (a_BlockY >= cChunkDef::Height)
The coords specify the exact point at which the path entered the world.
@@ -52,7 +52,7 @@ public:
Note that some paths can go out of the world and come back again (parabola),
in such a case this callback is followed by further OnNextBlock() calls
*/
- virtual bool OnIntoWorld(double a_BlockX, double a_BlockY, double a_BlockZ) {}
+ virtual bool OnIntoWorld(double a_BlockX, double a_BlockY, double a_BlockZ) { return false; }
/** Called when the path is sure not to hit any more blocks.
Note that for some shapes this might never happen (line with constant Y)
diff --git a/source/LineBlockTracer.cpp b/source/LineBlockTracer.cpp
index c5939cb78..03464314a 100644
--- a/source/LineBlockTracer.cpp
+++ b/source/LineBlockTracer.cpp
@@ -148,8 +148,11 @@ bool cLineBlockTracer::MoveToNextBlock(void)
if (abs(m_DiffX) > EPS)
{
double DestX = (m_DirX > 0) ? (m_CurrentX + 1) : m_CurrentX;
- Coeff = (m_EndX - DestX) / m_DiffX;
- Direction = dirX;
+ Coeff = (DestX - m_StartX) / m_DiffX;
+ if (Coeff <= 1)
+ {
+ Direction = dirX;
+ }
}
if (abs(m_DiffY) > EPS)
{
@@ -205,8 +208,8 @@ bool cLineBlockTracer::Item(cChunk * a_Chunk)
{
BLOCKTYPE BlockType;
NIBBLETYPE BlockMeta;
- int RelX = FAST_FLOOR_DIV(m_CurrentX, cChunkDef::Width);
- int RelZ = FAST_FLOOR_DIV(m_CurrentZ, cChunkDef::Width);
+ int RelX = m_CurrentX - a_Chunk->GetPosX() * cChunkDef::Width;
+ int RelZ = m_CurrentZ - a_Chunk->GetPosZ() * cChunkDef::Width;
a_Chunk->GetBlockTypeMeta(RelX, m_CurrentY, RelZ, BlockType, BlockMeta);
if (m_Callbacks->OnNextBlock(m_CurrentX, m_CurrentY, m_CurrentZ, BlockType, BlockMeta))
{